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"Can anyone tell me how many eggs you would expect a 1-2 year-old Diamond Tetra to lay? The first surprise breeding left us with 9 live babies. The next time we found six. We just intentionally bred a pair in a separate tank and think that we have 10-15 possible eggs. We are guessing at what the eggs look like (small white specks) based on the fact that I had just bleached the plant matter before putting it in the tank. Mating them has been surprisingly easy. It seems that warming the tank from 75 to 81F and setting the light cycle to a continuous 12 hours was all it took the first time. This time, doing it deliberately, we set the temperature at 78 (I am having issues with my heaters and couldn't land the 81F), put the fattest female off by herself for a few days then added the slowest male that we got lucky enough to catch. They acted stressed for around 20 minutes until I added a freshly cleaned bushy plant, then they went at it for a couple of hours and we saw around 6 specks on the leaves. Since the eggs are supposed to take a few days to swell and hatch, we left the fish together for three days and have a few more specks to report. They did not appear to eat anything that we identified as a possible egg (probably waiting for them to hatch and wiggle). We shall see what happens. Caution: avoid using a particularly spiky plant in the main tank if you are not using a separate breeding tank. We lost a mother that way when she dove into the plant to eat the live babies and got stuck. The one they seem to like has little heart shaped leaves. Go figure."